譜差指數 的英文怎麼說
中文拼音 [pǔchāzhǐshǔ]
譜差指數
英文
sdi-
For protein identification, proteins spots of interest on the gels stained with colloidal coomassie brilliant blue g - 250 were excised, digested in - gel with trypsin, and analyzed by peptide mass fingerprinting ( pmf ) with matrix assisted laser desorption / ionization - mass spectrometry ( maldi - ms ). erp60, trypsinogen, proelastase, lipaseandso on were identified. this will enable us to present an overview of the proteins expressed in rat pancreas tissues and lays the basis for subsequent comparative proteome analysis studies with pancreas development
從中隨機選擇一些差異蛋白質點，進行基質輔助激光解吸-電離飛行時間質譜（ maldi - tof - ms ）測定其膠內酶解后的肽質指紋圖譜，用mascot軟體查詢swiss - port數據庫，初步鑒定為一些與生長發育、物質代謝、細胞因子、信號轉導等有關的蛋白質，如erp60 、 trypsinogen 、 proelastase 、 lipase等。Tricepstrum equalization algorithm ( btea ) and super - exponential ( se ) algorithm based on block data estimation is studied, and these algorithms use hos explicitly. their performance, such as estimation variance and bias, is analyzed. a kind of sparse cross cumulant and sparse equalizer is proposed to simplify the se algorithm, and the simulating results show efficient reduction in complication
?研究了幾種直接使用高階統計量的演算法，包括基於數據段估計的倒三譜演算法和超指數演算法，分析了演算法的估計方差和偏差等性能；由於超指數演算法計算量較大，不利於實時均衡，利用水聲通道的稀疏性，提出了一種基於稀疏互四階累積量和稀疏權的演算法，有效降低了超指數演算法的計算量。In he - 3 and de - 3, 16 protein spots that were absolutely different ( only expressed in diploid embryos but not in haploid embryos or vice versa ) and 16 protein spots that were up - and down - r gulated were identified unambiguously. in he - 2 and de - 2, 20 protein spots that were absolutely different ( only expressed in diploid embryos but not in haploid embryos or vice versa ) and 5 protein spots that were up - and down - regulated were identified unambiguously, some of these different proteins are correlative with eyes development, nerve development, development regulation, cell differentiation and maintenance, arthromere formation and signal transduction. it shown that gene expression have significant difference between diploid and haploid during embryos developing
分別選取其中70個分辨好的差異蛋白質點進行原位胰蛋白酶酶解，酶解的肽片段用基質輔助激光解析電離分行時間質譜（ maldi - tofms ）得到肽質指紋圖譜，再在網上peptident軟體中搜索swiss - prot和trembl數據庫，初步鑒定了he - 3和de - 3上32個差異蛋白質點，其中包括16個表達量上有差異的蛋白質點（ p 0 . 05 ）和16個有無表達的差異蛋白質點，並且初步鑒定了he - 2和de - 2上25個差異蛋白質點，其中包括5個表達量上有差異的蛋白質點（ p 0 . 05 ）和20個有無表達的差異蛋白質點。In this text we make a diagnosis of linear and nonlinear response of quasi - quadrennial ( qq ) and quasi - biennial ( qb ) component of nino3. 4 index by using reanalyzed ncep / ncar data of sst, wind stress ( pseudo stress ) field, ssp, then have a time and spatial analysis of wind stress field by using mssa, and finally find the importance and contrast the effect of different wind stress field forcing the sea so as to find the cause ofenso irregularity
本文首先分析海表溫度（ sst ） 、風應力場、海表面氣壓（ slp ）等ncep ncar再分析的月距平場對于nino3 . 4指數的準4a （ qq ）和準2a （ qb ）振蕩成分的線性和非線性響應，接著用mssa （多通道奇異譜分析）對風應力場進行時空特徵分析，最後用一個熱帶太平洋動力海洋模式研究具有不同振蕩性質的風應力場對海洋強迫作用的重要性及差異，尋找enso不規則性的原因。Because of modis predominant space and spectral differentiate rate, it ’ s has been broadly applied to various field, in the aspect of snow monitoring, modis has been successfully using a normalized difference snow index ( ndsi ) to provide global automated binary maps of snow cover. the ndsi is a spectral ratio that takes advantage of the spectral difference of snow in short - wave infrared and visible spectral bands, although it has higher precision, it can only discern one pixel to snow or other features, can not satisfy accurate drainage basin snow cover mapping and snow parameter extracting
Modis數據因其優越的空間解析度、波譜解析度，已被廣泛的運用於各個領域，在積雪監測方面，已成功地運用歸一化差分雪蓋指數（ ndsi ）製作每天的全球雪蓋分布圖， ndsi是基於雪對可見光與近紅外波段的反射特性和反射差相對大小的一種測量方法，然而它只能將一個像元辨別為積雪或非積雪，滿足不了高精度應用要求。The prepared sdse modified zirconum meinbrane was tested at the wider range of tcmperaure and pressure and differellt composihons of hydrogen mixturc gases ( i. e. different hydrgen panal pressure ) in order to examine the performance of this membrane and the sole hpermselechvity of the membrane. the results showed tha the purity of the permeated hydrgen is l00 % at the base of the detection greatest lower lanit of the qhle mass spectrometer, and there was no impurity gas passed, the permeating flux and permeability of this membrane are from several decades times to one decade times more higher than tha of a palladum membran in the range of from 593k to 773k, puv = 0. 2 ~ 0. 3mpa, pdn = 4x l04pa - - 0. lmpa, the hydrogen permeatng flux is increased with the difference of the squto root of pressure, and presents a linear relationship, the pressure seems has no influence on the permeablity, the permeabi1ity is decreased with the increasing of the temperature, and presents an exponential relationship, accondng to the fitting curve of the relationship betwen the permeability and the temperatur derived from the experimenta daa, in the range of 593k ~ 773k, pup0. 2 ~ 0. 3mpa, pha = 4 x l0 # pa ~ 0
在更寬的溫度范圍、壓差范圍內，在不同原料氣組成（即不同的氫氣分壓）條件下，對所制備的鋯表面改性膜進行了滲氫性能實驗，考核了膜對氫的唯一選擇滲透性，結果表明：在四極質譜的檢測下限內，只有氫氣存在，而無雜質氣體通過；在593k 773k溫度范圍內，鋯表面改性選擇滲氫膜具有高於鈀膜數十倍至十幾倍的滲氫流量和滲氫系數；其滲氫流量隨著膜兩側氫分壓平方根摘要差的增大而增大，並且呈線性關系；壓力對膜的滲氫系數幾乎無影響；膜的滲氫系數隨著溫度的升高而下降，井巨呈指數關系：根據對實驗數據所作滲氫系數與溫度關系曲線的擬合，在溫度593k 773k范圍內，壓差p 、 0二0The initialization method to achieve different equalizer delay local minimum is proposed for btea and se. comparison study using several uwac with different zero locations is made to demonstrate the equivalent of different initialization method for least mean square ( lms ) algorithm, btea, se and cma
盡管常數模盲均衡演算法的初始化仍然是一個公認的未能解決的問題，但本文通過幾條不同零點位置的水聲通道，對比研究了自適應最小均方誤差演算法、倒三譜演算法、超指數演算法和常數模演算法的不同權向量初始化的等效性。Abstract : a semi - analytical method is used to modelling the pract ical 3 - zone simulated moving bed chromatography ( smbc ) process for optimal searc hing. the switch time which is the most important operation parameter of 3 - zone smbc is analyzed based on the nonlinear batch chromatography theory firstly, and then adjusted by the deviation between the output and the expectation. the switch time approaches the optimization very soon by continously searching on the basi s of the theory. the parameters of the practical system are inputted into simulat ion, the result is used in our experiment and a good separation is obtained
文摘:針對三帶模擬移動床色譜的實際模型，用一種融合了前饋與反饋的半解析優化計算方法對三帶模擬移動床色譜過程進行了模擬.首先，由非線性單柱色譜理論解析地給出一個三帶模擬移動床色譜的主要操作參數即切換時間值，然後利用所得結果與目標量之間的偏差來校正切換時間，在理論指導下進行優化搜索，切換時間能很快達到最佳值.將測得的系統參數引入計算，並將計算結果用於實際操作，得到了很好的分離效果Methods and results : proteomics approaches involve three critical techniques : two dimensional electrophoresis, biological mass spectrometry and bioinformatics. in 2 - de, we applied traditional ief in the first dimension and tris - tricine system in the second dimension and acquired protein profiles of serum and skin samples. in the identification of 10 proteins of serum and 16 proteins of skin, we acquired peptide mass of fingerprint ( pmf ) maps for all targets by means of matrix - assisted laser desorption - ionization time of flight mass spectrometry ( maldi - tof - ms ) and partial aminio acid sequences for 9 proteins by means of electrospray ionization ms / ms ( lisi - ms / ms )
研究方法：採用雙向電泳技術獲取泥鰍創傷前後血清和皮膚的小分子蛋白圖譜，利用基質輔助激光解析飛行時間檢測質譜分析（ matrix - assistedlaserdesorption - ionizationtimeofflightmassspectrometry ， maldi - tof - ms ）和電噴霧離子化串連質譜分析（ electrosprayionizationms / ms ， esi - ms hs ）分別獲得差異蛋白點的肽指紋圖譜（ peptidemassoffingerprint ， pmf ）和部分序列信息，通過網際網路上的expasy服務器中和ncbi的相關軟體將這些信息和swissprot數據庫進行匹配鑒定蛋白質種類。Via numeric sample analysis, it is found that evaluation functions are constructed by weighing principal components for pca. however, evaluation functions can be quite different when there are more than three principal components and characteristic vectors other than first one are chosen in different directions. for spca, variance contribution can be greater than 90 % by selecting just one principle component
將譜主成分分析應用於多指標評價系統中，通過數值例子分析：主成分分析是通過對各個主成分加權構造評價函數，當主成分個數不小三個時，從第二個特徵向量開始，對方向的不同選取，可導致評價函數的極大差異：而用譜主成分分析，能做到只取一個譜主成分就可使方差貢獻率大於90 。The source of uncertainty was analyzed in detail about the determination of the epoxide index for epoxy resins by infrared spectroscopy, the determination of the temperature and the heat of the curing reaction for epoxy resins by differential scanning calorimetry, the determination of the hydroxymethyl index for phenolic resins by infrared spectroscopy and the reverse phase method of the high performance liquid chromatography for phenolic resins. the uncertainties of these testing methods were determined. some applied tests were carried out
在大量試驗研究的基礎上，首次對紅外光譜法測定環氧樹脂環氧指數試驗方法、差示掃描量熱法測定環氧樹脂反應溫度和反應熱試驗方法、紅外光譜法測定酚醛樹脂羥甲基指數試驗方法、酚醛樹脂的高效液相色譜分析方法的不確定度來源進行了分析，對測量方法的不確定度進行了評定，並進行了應用試驗。分享友人